【摘要】 为研究液氮抑制锂离子热失控的有效性，降低实验危险性和复杂度。以实验与模型相结合的方式，使用COMSOL Multiphysicsl构建锂离子电池热失控升温模型和液氮降温模型，研究敞开空间液氮抑制锂离子电池热失控的效果。结果表明：液氮可以快速将热失控的电池降至安全温度以下，防止电池再次升温至危险温度。本模型也可用于探索液氮抑制锂离子电池热失控有效性条件的研究，降低实验危险性。更多还原

【Abstract】 In order to study the effectiveness of liquid nitrogen inhibition of lithium-ion thermal runaway, and to reduce the risk and complexity of the experiment, in this paper, by combining of experiments and models, COMSOL Multiphysics was used to construct the thermal runaway heating model of lithium-ion battery and liquid nitrogen cooling model to study the effect of open space liquid nitrogen to inhibit the thermal runaway of lithium-ion battery. The results show that liquid nitrogen can quickly reduce the thermal runaway battery to below the safe temperature and prevent the battery from heating up again to the dangerous temperature. This model can also be used to explore the effectiveness of liquid nitrogen in inhibiting thermal runaway of lithium-ion batteries and reduce the experimental risk.更多还原